Finding the Fourth Proportional to 1,820.28, 2,509.33 and 1,447.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,820.28 : 2,509.33 = 1,447.41 : x
2. Step 2: Convert to fraction form
   1,820.28/2,509.33 = 1,447.41/x
3. Step 3: Cross multiply
   1,820.28x = 2,509.33 × 1,447.41
4. Step 4: Simplify right side
   1,820.28x = 3,632,016.79
5. Step 5: Solve for x
   x = 3,632,016.79/1,820.28
6. Step 6: Final answer
   x = 1,995.31